PITTSBURGH (AP) — Authorities are looking for the owner of a car that was left unoccupied at the back gate of the FBI’s office in Pittsburgh. Guards saw the vehicle pull up around 5 a.m. Thursday and the driver left. FBI spokeswoman Catherine Policicchio says the city’s bomb squad was called in. They examined the vehicle, which had non-threatening words painted on it, with a K-9 and robot. The spokeswoman says at no time was the public in any danger.